Journal box



JOURNAL BQX Filed Jan. 27 1920 mvEm-on ATTORNEY Patented Mar. 4, 1924.

UNITED STATES PATENT OFFICE.

LEO K. STAFFORD, 0F DETROIT. MICHIGAN. ASSIGNOR T0 THE STAFFORD ROLLER- BEARING CAR TRUCK CORPORATION. OF LQI'ON` MICHIGAN, A CORPORATION 0F NEW JERSEY.

JOURNAL BOX.

Application tiled January 27, 192D.

To n/ wlw/n if muy concern:

Be it known that I, Leo K. SxArronn, a citizen of the United States. residin at Detroit. in the county of Wayne. and tato of Michigan. have invented new and useful Improvements in .lournal Boxes. of which the following is a specification.

This invention relates to roller bearings for railway trucks and the present invention is an improvement over that forming the subject. matter of an application filed by me on Sept. 6. 1919. Serial No. 322.027.

One of the objects of the present invention is to provide two or more series of rollers between the box and spindle. the. rollers of one series having independent movement in relation to the other rollers so as to reduce the. wear of the rollers and revent`breakage of the parts and make tyie bearing more flexible than it would be, if'a single series of rollers was used.

Another object of the invention is to connect the roller bearing retaining member to the spindle so that it will rotate with the spindle and with the roller cage so as to re-4 duce the wear and friction between said member and the cage.

Still another object of the invention is to provide means whereby the parts may have a certain amount of movement. in a vertical planevso as to compensate for the tilting movement of the axle due to uneven parts of the track.

This invention also consists in certain other features otconstruction and in the combination and arrangement of the several parts, to be hexeinaftcr fully described, il lustrated in the accompanying drawings and s ecitically pointed ont. in the appended c aims.

In describing my invention in detail, ref erence will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a cross sectional view through a boxing and spindle showing the manner of carrying out my invention.

Figure 2 is an end view of the parts shown in Figure 1.

Figure 3 is a. longitudinal sectional view with parts broken away.

Figaro t is a side view with parts in section.

Se rial No. 354,125A

Figure :'i is a perspective view of one of the rollers.

Figure (i is a sectional view showing a modification.

Referring to Figures l to inclusive. the boxing is indicated at l and this boxing is located between the upper and lower projections 2, of the truck. which are connected together h v the bolts 3 which carry the spacing sleeves 4. the boxing being arranged between said bolts. The top of the boxing is provided with the concave recess 5 which rcceives the semiwircnlar member 6 carried by the upper member of the truck. As will be seen the bottom piece of the truck is spaced from the bottom of the boxing so that said boxing may have vertical play to permit a rocking movement. This rocking movement being limited b v the lugs 7 formed on the sides of the boxing and engaging with the bolts or their sleeves.

.\ case hardened sleeve or tube 8 is inlsci-ted in the. bore of the. boxing and this tube is provided with a longitudinally extending rib 9 which engages the longitudinal groove l0 formed in the boxing. A case hardened tube tl is placed on the spindle l2 of the axle and this tube is also provided with a rib 13 engaging a groove 14 in the spindle to prevent turning of the tube on said spindle. As shown in Figure Il the tube extends through the wheel and is provided with an offset portion l5 which forms a shoulder which engages the shoulder t6 0n the spindle.

The rollers 17 are. carried by the rings i8 and these rings are connected together b v the rods 19. As shown I use two series of rollers, cach series being carried by a pair of rin with the middle rings in contact with eac other. Each roller has its ends rounded ns at 2O so as to allow for the tilting movement of the axle in the boxing when the car is passing over uneven portions of the track. The rings may be provided with the nip- -ples shown in the before mentioned application and engaging the conical openings 21 in the ends of the rollers.

The roller ca e is retained in position between t-he case lgiardened tubes by means of the retaining member 22 which is made in the form of a cap for Flttin over the end of the spindle. This mernier has screw threaded engagement, with the end of the tube 11 and is bolted to the end of the spinelle by the bolts 23. In this way the retaining member rotates with the `spindle and the cage so as to reduve wear of thv said member and the outer ring ofthe rage. This arrangement also permits thv exige to hv snugly, held in position lit-tween the shoulder on the tithe 1l and the retainin; r nivnihvr.

Holes 2l are forinvd in the lower part of the tube 8 and the lower wall ofthe bore of the boxing. these holes communicating with the oil well 25 of the iboxing. The and of the bore of the boxing is vlosed hy the screw cap '.t and this ea i has fornietl therein a iilhn; r opening 27 w ivh is closed by a screw plug 2H. I the niotlilivation shown in Figure t2 the fixing: l' is made integral with thv ends of the truck. shown at 2' and in order to permit the vertii-ul play of thv parts whvn the Vear is passing over uneven portions ot' the track I nt'nke the bore 2* of thv boxingr of substantially elliptical shape so that thv rollers 1T cari-ivd b v the annular enge 18' will be spared from 'the lower portion of the boxing unil/thus pernnt the vettival play above mentioned. Inother respects this form 'of the invention is similar to that above described.

It will thus be seen that when thv rar is passing over uneven portions of thv travk or over loose joints of,the rails where the aXl'e will be tilted this movement will be compensated for h v the vertival play between the parts so that therollers will not be wedged ltetween thv tulivs and thus suhjeeted to great wear. Also hy 'having' thv two or more rollers in plave of thtone long roller there is no danger of thv rollers hreak ingl` under the-uneven strain as onv rollt-r can rotate independently of the othvr. lly

the retainingr nielnhvr tor thv roller vage to the spindltl this nivinlier will rotate with the raggv and pindle o that thv wvar livtween the outvr ring; oll thv vage and said llielnlivl will liv rollin-vd lo t||v niinilnnnl and thv ragt' may liv ln-ld against longitudinal lt is thought troni thv l'ol'vggoinrr dest'liption that thv advantage.` and novel features of ni)- intention will liv readily apparent.

I desire it to he understood that l may nnike vhanges in the eonstruvtion and in thv t'otnhination and arrangement olV the svtVY vrul parts. provided that sut-li eli-anges fall 'within the scope of the appvndvd vlainis.

`loeated between .said tnhvs. .said vage vonsisting of a series of rings and hars vonnvetiin: the rings together. thv innvr rings tontavting with vavh other. :t plnl'alty of rollers carried hy eavh pair ol' ringsund te tainin; r nieans for the cage.

2. A roller livaring r for railwa)Y trucks eonipt'isinga Inox haring n l.orv of vlliptival shape .for ret'eiting the axle 4spindle. a rase hardened tube lovated inl the hol-v. said tuhe also heing r of elliptit-al shape. a vase hard-` ened tnliv varried hy the spindle. a roller enge ol' virvulal' .shape lovated between said `having'the ends of thv rollers rounded thv tnhvs and roller hearings varrivd h r said tilting action willnot ehip otl' thv endsA of the rollers as would be the case if the rollers were rndtz` with square ends. By seeming vago In testimony whereof I affix my signature.

LEO K. STAFFORD. 

